Tradescantia species

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Scientific Name Tradescantia gigantea USDA PLANTS Symbol
TRGI
Common Name Giant Spiderwort ITIS Taxonomic Serial No.
39162
Family Commelinaceae (Spiderwort) SEINet Reference
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Description Habitat: Limestone soils in pasturelands, woodland edges, roadsides; endemic to Central Texas.
Plant: Erect perennial with straight usually unbranched stems 8 inches to 3 feet tall with 3 to 5 nodes; lower stem mostly smooth, upper densely covered with short hairs.
Leaves: Narrow linear-lanceolate, pointed leaves 4 to 14 inches long; upper leaves densely covered with short hairs, lower mostly smooth.
Inflorescence: A few to many flowers in terminal cymes, blossoms about 1 inch across with three broad, rounded petals, usually lavender-blue to pink, rarely white; yellow anthers; blossoms subtended by leaf-like bracts up to 4 inches long with a sac-like shape at the base; bracts, sepals and pedicels covered in short, fine hairs.
Bloom Period: March to May.
References: "Wildflowers of the Texas Hill Country" by Marshell Enquist and "Manual of the Vascular Plants of Texas" by Correll and Johnston.
Texas Status
Native-
Endemic to Central Texas
Scientific Name Tradescantia humilis USDA PLANTS Symbol
TRHU
Common Name Texas Spiderwort ITIS Taxonomic Serial No.
39165
Family Commelinaceae (Spiderwort) SEINet Reference
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Description Habitat: Sandy and rocky soils of the Central and South Texas; disturbed areas, roadsides and fencerows.
Plant: Upright perennial, spreading stems, branched particularly at base; several inches tall.
Leaves: Narrow, recurved linear to lanceolate leaves 4 to 8 inches long, usually with purple-tinged edges and covered with soft, downy hairs.
Inflorescence: Blue/violet blossoms on pedicels 1/2 to 1-inch long, each blossom about 1 inch across with three broad, pointed petals, 6 stamens; with dull green bracts similar to leaf form, hairy, purple-tinged.
Blooming Period: March to June.
Reference: SEINet and Texas A&M/Uvalde
Texas Status
Native-
Endemic to Llano Uplift
Scientific Name Tradescantia pedicellata USDA PLANTS Symbol
TRPE9
Common Name Granite Spiderwort, Edwards Plateau Spiderwort ITIS Taxonomic Serial No.
505553
Family Commelinaceae (Spiderwort) Flora of North America Ref.
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Description Habitat: Granitic, well-drained soils in pastures and open areas of the Llano uplift.
Plant: Upright perennial up to 12 inches tall; stems branched from base with short hairs.
Leaves: Long, narrow, linear to lanceolate leaves 8 to 12 inches long and up to 3/8-inch across, dark green to light yellowish-green, with short hairs with and without glands; pronounced veins.
Inflorescence: Umbel of pink to dark blue blossoms on pedicels 1 to 1-3/4 inches long; flowers about 1 inch across with three broad, rounded or somewhat pointed petals, 6 stamens; sepals are pointed with short, glandular hairs.
Reference: "Rare Plants of Texas" by Poole, Carr, Price and Singhurst and "Manual of the Vascular Plants of Texas" by Correll and Johnston.
Texas Status
Native
Rare
Endemic to Llano Uplift
Scientific Name Tradescantia subacaulis USDA PLANTS Symbol
TRSU
Common Name Stemless Spiderwort ITIS Taxonomic Serial No.
39175
Family Commelinaceae (Spiderwort) SEINet Reference
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Description Habitat: Loose sandy soils, open woods, or open ground; endemic to Texas.
Plant: Low-growing perennial with short, much-branched, spreading hairy stems (species name means "almost stemless"), 4 to 12 inches long.
Leaves: Linear-lanceolate, long-pointed, hairy leaves, 4 to 7 inches long and ~5/8-inch wide; lax and flaccid.
Inflorescence: A few to several bright blue (rarely pink) blossoms in terminal clusters or arising from leaf nodes; each flower ~1 inch across with three broad, rounded or somewhat pointed petals; pedicels 3/4 to 1-1/4 inches long; sepals hairy, rose/purple tinged broadly elliptic, pointed, about 1/3-inch long.
Bloom Period: March to June.
References: Shinners & Mahler’s Illustrated Flora of North Central Texas, "Manual of the Vascular Plants of Texas" by Correll and Johnston, and Flora of North America.
Texas Status
Native

Click here for white T. gigantea


© Tom Lebsack 2019